new guy looking for help please

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nickgt92

New Member

Jan 9, 2011

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Jan 9, 2011

#1

• Jan 9, 2011

• #1

hey everyone im new to this. my names nick and i have a 92 hatch 5.0 gt this is my second 5.0. but i have a question and i need some help.
so im trying to install a racing tach and i have all the wires on but i cant figure out where the green wire gose, the wire that makes the tach needel read the rpms? can anyone help me out and maybe show me some pics to help please?

thanks nick.

 

gtcobra302

Member

Sep 6, 2005

118

1

16

Centra Florida

Jan 9, 2011

#2

• Jan 9, 2011

• #2

Tach signal always comes from the negative side of the coil. Run the green wire from the tach to the negative wire coming off of the coil.

 

skunk21

Active Member

May 22, 2007

1,203

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36

Taxachusetts

Jan 9, 2011

#3

• Jan 9, 2011

• #3

yep, neg side of the coil just like gtcobra302 posted.

 

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nickgt92

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Jan 9, 2011

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Jan 9, 2011

#4

• Jan 9, 2011

• #4

nickgt92 said:

hey everyone im new to this. my names nick and i have a 92 hatch 5.0 gt this is my second 5.0. but i have a question and i need some help.
so im trying to install a racing tach and i have all the wires on but i cant figure out where the green wire gose, the wire that makes the tach needel read the rpms? can anyone help me out and maybe show me some pics to help please?

thanks nick.

Click to expand...

ok cool thanks alot guys ill give it a try and see what happens

 

Shaolin Crane

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Kommiefornia

Jan 9, 2011

#5

• Jan 9, 2011

• #5

I just tapped into the tach signal on the harness behind the cluster

 

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nickgt92

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#6

• Jan 9, 2011

• #6

i was going to do that but wen i went to pull back the gauge panell i couldnt pull it out far enought to do it because the speedometer cable was atattched and i was worried that if i took it off it would be really hard to put it back on?

 

Shaolin Crane

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Kommiefornia

Jan 9, 2011

#7

• Jan 9, 2011

• #7

It just pushes on and snaps into place

 

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nickgt92

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Jan 9, 2011

#8

• Jan 9, 2011

• #8

o ok it is hard to take off or do i just pull it off or is cliped on?

 

Shaolin Crane

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Kommiefornia

Jan 9, 2011

#9

• Jan 9, 2011

• #9

its a soft plastic ring and you press it so it oblongs and simply pull it off

 

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nickgt92

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Jan 9, 2011

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Jan 9, 2011

#10

• Jan 9, 2011

• #10

im installing a new tack on my 5.0 and i tryed to plug it in on the neg side of the coil but it didnt work for some reason so i want to just tap into the spedometer wire behind the cluster but idk what wire do tap into or even what color? can anyone help please?

 

stykthyn

I want to measure mine. It doesn't look that tall.

15 Year Member

Jul 6, 2006

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gainesville

Jan 9, 2011

#11

• Jan 9, 2011

• #11

I use a set of extra long needle nose to pull tthe speedo cable out

 

1bad67sbf

Active Member

Nov 24, 2010

674

1

29

N. VA

Jan 9, 2011

#12

• Jan 9, 2011

• #12

if the tach wont work off the neg side if the coil than something is wrong, that is the same feed signal that feeds the stock tack.

 

Boosted92LX

It's only an inch or two. What's the big deal?

15 Year Member

Dec 19, 2010

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Jan 9, 2011

#13

• Jan 9, 2011

• #13

Ground check!!!!

 

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nickgt92

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Jan 9, 2011

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#14

• Jan 9, 2011

• #14

yea but the rpm on the cluster still works but wen i plug in the race tach to the neg it dosnt work but wen i plug it into the red wire on the coil it work but it reads at 3 grand? im hella confused ? so i wanna just plug it into the stock tach wire behind the cluster but idk what wire to tap into?

 

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nickgt92

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Jan 9, 2011

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Jan 9, 2011

#15

• Jan 9, 2011

• #15

ok so what color was the wire u tapped into to us the tach?

 

ID89GT

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May 26, 2008

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Spokane Valley, WA

Jan 10, 2011

#16

• Jan 10, 2011

• #16

He is saying you have something else wrong with the tach. The negative side of the coil should work no problem. Do you have the power wire and ground hooked up correctly? That is where I would look if it still ain't working when hooked to the negative side of the coil. Also does the light come on when you turn your lights on like it should?

 

1bad67sbf

Active Member

Nov 24, 2010

674

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N. VA

Jan 11, 2011

#17

• Jan 11, 2011

• #17

i bet you have the tach set for a 4 or 6cyl when it was reading 3k. check the tach settings. the side you got a tach signal from is most likly the neg. if you hook to the pos it should not read anything from what i remember

 

N

nickgt92

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Jan 11, 2011

#18

• Jan 11, 2011

• #18

ok i got it lol the damn ground wire was off the nut i put it too it works great now thanks guys

 

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nickgt92

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Jan 11, 2011

#19

• Jan 11, 2011

• #19

new problem :/ my overhead lamp is on all the time. u knw wen you open the doors and the lapm comes on and when u shut them it gose off well mine stays on all the time. and i checked the hatch and both doors everything is shut and it still stays on, any maybe know why?

 

SMOKEDYA

20+ Year Stangneter

Jul 13, 2003

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Tucson AZ

Jan 11, 2011

#20

• Jan 11, 2011

• #20

The light just started staying on after you hooked the tack up?peace









john